SQL parametric string

def ps(s: str, t: str, f: tuple) -> str:
    """Creating a parametric query substring"""

    r = s + "  " + t + " " + str(f).replace("'", "") + " VALUES (" + ("?, " * len(f))[0:-2] + ")"
    return r
s="INSERT INTO"
t = "TableName"
f = ('1', '2', '3')
x = ps(s, t, f)
print(x)